Textile material



Patented Sept. 21, 1937 UNITED STATES. PATE OFFICE Camille Dreyfus, NewYork, N. Y.

No Drawing. Application March 31, 1931, Serial No. 526,763

Claims. (01. 154-2) This invention relates to textile fabrics and varyfrom 5 to 200% of the weight of the organic articles made therefromwhich are more or'less impervious to water and moisture and which haveand moisture in a cheap and expeditious manner;

A further object of my invention is to prepare textile materials andarticles made therefrom which are more or less stiff and which can bereadily cleaned. Other objects of my invention gill appear from thefollowing detailed descrip- I have found that textile materials whichare impervious to moisture to any desired degree and which are as stiffas may be required may be made by causing two or more layers of fabriccontaining organic derivative of cellulose yarn to adhere together bymeans of an adhesive that is relatively impervious to water or moisture.Any desired article or wearing apparel may be made from such textilematerial.

In accordance with my invention I prepare textile materials that haveany desired degree of water-proofness and stiffness by causing two ormore layers of fabric containingyarns'of organic derivatives ofcellulose to adhere together by:.

means of a composition that has the desired degree of stiffness andimperviousness or waterproofness.

The fabric employed may contain yarns of organic derivatives ofcellulose such as organic esters of cellulose and cellulose ethers.Examples of such organic esters of cellulose are cellulose acetate,cellulose formate, cellulose propionate and cellulosg butyratc, whileexamples of cellulose ethers re ethyl cellulose, methyl cellulose andbenzyl cellulose. The fabric may be dyed any desired color or it may beprinted with any desired colored design. The fabric may be a woven,knitted or netted fabric. Any suitable relatively impervious compositionmay be used for causing the-layersof fabric to adhere together., Thiscomposition may be of inorganic nature or of organic nature such asrubber or water-resistant glue. However I prefer to employ for thispurpose a composition containing a derivative of cellulose, which maybecellulose nitrate or an organic derivative of celluldsas above describedand a plasticizer and/or softening agent erefor. Examples ofsuitable'plasti- .cizers are camphor, dimethyl phthalate, diethylphthalate, dibutyl tartrate, diethyl tartrate, triacetin,'triphenylphosphate, etc. The amount of 56 plasticizer and/or softening agentemployed. may

derivative of cellulose present. In the case of cellulose nitrate, oilsusually employed for this purpose may be incorporated in any desiredamount so that the final product has the desired stiffness orpliability, as is understood in .the art. By controlling the amount ofplasticizer and/or softening agent used, the stifiness of the resultingproduct may be controlled, that. is to say the less plasticizer and/orsoftening agent used, the stiffer the product will be.

The composition of the derivative of cellulose- 'and plasticizer orsoftening agent may be applied to the surfaces of the fabric in the formof a solution in a volatile solvent, which preferably does not exert aconsiderable solvent action on the organic derivative of cellulose ofthe fabric, which is then permitted to evaporate, or it may be appliedin the form of a plastic composition or in the form of a dry powder. Thestiffness and imperviousness of the resulting material 'may becontrolled by the nature of the'composition used as the adhesive layerand also the thickness of such layer.

, After the impervious adhesive layer is interposed between the layersof the fabric, the assembly is pressed at elevated temperatures to causefirm adhesion of the same. This pressing may be done in any convenientmanner and by any suitable means; for instance the assembly of fabricand adhesive layer may be passed between hot calendaring rolls.Preferably the conditions ofv pressing are such that the yarns of thefabric are not coalesced so that the woven or knitted appearance of thefabric is preserved.

The material made by this invention may be usedfor making collars,cuffs, stiff shirt bosoms andthe like. It may also be used for makingwaterproof articles such as bathing bags, raincoats, etc. It also may beused as a stiffening fabric in the making of men's clothing, neckties,

' etc. I

The material made by this invention, may be worked up into articles verycheaply. If the fabric employed consists wholly of cellulose acetateyarn, the whole material is of thermoplastic character. Therefore thematerial can be cut by means of a hot knife or blade, and because of theheat the edges will fuse and thus be sealed against fraying. Aconvenient method of making such articles is to stamp them out by meansof a hot die. If collars or cuffs are to be made, the die maycontain'members for stamping out the button holes at the same time; andin the case of collars the material may be scored to possess many uniqueadvantages.

- vention.

permit the folding over of the same. Alternatively the material may becut by ordinary means and the cut edges sealed against fraying byapplication of asolvent such as acetone. However the material may be cutand sewrrin the ordinary manner.

Fabrics and articles made by this invention Since cellulose acetate orotherorganic derivative of cellulose yarn does not absorb grease or dirtinto the interior of the fibres or filaments, when the articles aresoiled they may be cleansed by simple rinsing, wiping or light brushingin a manner very similar to that .employed. for cleaning celluloidcollars. Yet,-they have the appearance of fabrics, since the appearanceof the outer layers of fabric is preserved. Moerover when the method ofstamping or severing by means of hot dies or blades is employed, thenecessity of sewing the seams or edges is avoided. Thus superior,products are made in a very cheap way.

It is to be understood that the foregoing detailed description is givenmerely by way of illustration and many variations may be made thereinwithout departing from the spirit of my in- Having described myinvention, what I desire to secure by Letters Patent is:

1. Process foifthe manufacture of textile articles from materials havingat least two layers of fabric comprising filaments or fibres of anorganic derivative of cellulose held together by means of a layer of arelatively impervious plastic composition containing a derivative ofcellulose, said filaments or fibres of the fabric being exposed on theouter surfaces thereof, which comprises stamping the articles from thesaid material by means of a hot die adapted to seal the edges of thearticles.

2. Process for the manufacture of textile articles from materials havingat least two layers of fabric comprising filaments or fibres of cell v,lulose acetate held together by means of a layer 3. In a process for themanufacture of textile articles from materials having at least twolayers of fabric comprising filaments or fibres of an organic derivativeof cellulose held together by means of a layer of a relativelyimpervious plastic composition comprisinga derivative of cellulose. saidfilaments or fibres of the fabric being exposed on the outer surfacesthereof, the step of cutting out the articles by means of a hot cuttingedge whereby the edges of I the articlesZare sealed byfusion.

4. In a process for the manufacture of textile articles from materialshaving at least two layers of fabric comprising filaments or fibres ofcellulose acetate held together by means of a layer of a relativelyimpervious plastic'composition comprising a derivative of cellulose,said filaments or fibres of the fabric being exposed on the outersurfaces thereof, the step of cut-' ting out the articles by means of ahot cutting edge whereby the edges of the articles are sealed by fusion.

5. In a process for the manufacture of textile articles from materialshaving at least two layers of a fabric comprising filaments or fibres ofcellulose acetate held togethenby means of a layer of a relativelyimpervious plastic composition comprising cellulose acetate, saidfilaments or fibres of the fabric being exposed on the outer

